James Watson

James Dewey Watson was born in Chicago on April 6, 1928, and grew up on the city's South Side with an early passion for bird watching, a hobby he shared with his father. He was bright enough to appear on Quiz Kids, a popular radio programme that tested young contestants, and enrolled at the University of Chicago on a tuition scholarship at just 15 years old. Reading Erwin Schrödinger's book What Is Life? in 1946 redirected his ambitions entirely, pulling him away from ornithology and toward the molecular basis of heredity.

Watson earned his zoology degree from Chicago in 1947 and moved to Indiana University, where he was drawn by the presence of Nobel laureate Hermann Joseph Muller. Under the supervision of Salvador Luria, Watson completed his doctorate in 1950. Luria was part of the Phage Group, a network of researchers using viruses that infect bacteria to study the nature of genes, and Watson absorbed that group's conviction that the physical structure of the genetic molecule was the central unsolved problem in biology.

After a postdoctoral year in Copenhagen that failed to satisfy his growing interest in DNA structure, Watson arrived at the Cavendish Laboratory in Cambridge, England, in 1951. There he met Francis Crick, and the two quickly aligned around the goal of determining DNA's molecular architecture. Their approach combined X-ray crystallography data, molecular model building, and close attention to results being generated by other laboratories, particularly King's College London.

The critical data came largely from Rosalind Franklin and her student Raymond Gosling at King's College. Franklin's high-quality X-ray diffraction images revealed the water content of DNA crystals and indicated that the sugar-phosphate backbones of the molecule belonged on the outside. She also determined the space group of DNA crystals, which told Crick that the two strands ran in opposite directions. Watson and Crick had access to her unpublished results through her 1951 seminar, through conversations with Maurice Wilkins, and through a Medical Research Council progress report. Franklin was not informed that her data was being used.

In mid-March 1953, Watson and Crick completed their model of the double helix. Their paper, 'Molecular Structure of Nucleic Acids: A Structure for Deoxyribose Nucleic Acid,' appeared in the journal Nature on April 25, 1953. Franklin and Gosling published their own supporting paper in the same issue. In 1962, Watson, Crick, and Wilkins received the Nobel Prize in Physiology or Medicine for the discovery. Franklin had died in 1958 and was therefore ineligible for nomination.

Watson joined the biology faculty at Harvard University in 1956, where he focused on RNA and its role in transferring genetic information. He remained on the Harvard faculty until 1976, though his attention increasingly shifted elsewhere. In 1968, the same year he published his memoir The Double Helix, he was appointed director of the Cold Spring Harbor Laboratory in Laurel Hollow, New York, a small facility he would transform into one of the world's leading centres for molecular biology and cancer research.

At Cold Spring Harbor, Watson redirected the laboratory's emphasis toward understanding the genetic basis of cancer and dramatically expanded both its funding and its research programs. He served as director, then president from 1994, and later chancellor. Between 1988 and 1992, he also helped establish the Human Genome Project at the National Institutes of Health, advocating that the human genome should belong to the world rather than to private patent holders. He resigned from the Genome Project in 1992 after conflicts with NIH Director Bernadine Healy over the patenting of gene sequences. Francis Collins took over the project, which completed the mapping of the human genome in 2003.

Watson's 1968 book The Double Helix presented a personal, candid account of the discovery and quickly became a bestseller, ranked seventh on the Modern Library's list of the 100 best nonfiction books. The book generated immediate controversy. Francis Crick and Maurice Wilkins objected strongly enough that Harvard University Press dropped the project, and it was published commercially instead. Crick reportedly described the book as a contemptible account of events.

Watson's portrayal of Rosalind Franklin drew particular criticism. He referred to her dismissively throughout, gave the impression she was Wilkins' assistant rather than an independent scientist, and suggested she was unable to interpret her own data. The accusation was especially difficult to defend given that Franklin had correctly told Watson and Crick that the helical backbones had to be on the outside of the molecule. Watson himself acknowledged in the book that Franklin had not given her data directly to him and that no one at King's College had known it was in their possession. In a 1954 paper, Watson and Crick had written that without Franklin's data the formulation of their structure would have been most unlikely, if not impossible.

Throughout his career, Watson made a series of public statements that proved deeply damaging to his reputation. He repeatedly asserted that differences in average measured IQ between Black and white populations were genetic in origin, and made similar claims linking skin colour to libido and ethnicity to specific cognitive traits. In October 2007, following an interview in which he discussed his views on African intelligence, Cold Spring Harbor Laboratory suspended his administrative responsibilities. Watson retired shortly afterward, and the laboratory described his nearly 40 years of service as distinguished even as it distanced itself from his remarks.

In January 2019, after a television documentary in which Watson again repeated his views on race and genetics, Cold Spring Harbor Laboratory revoked all honorary titles it had awarded him and severed all remaining ties. Watson did not publicly respond. In 2014, he had auctioned his Nobel Prize medal at Christie's for 4.1 million US dollars, citing his sense of having been made an outcast following the earlier controversy. The buyer, Alisher Usmanov, later returned the medal to Watson.

Watson died in East Northport, New York, on November 6, 2025, at the age of 97. The New York Times called him one of the most important scientists of the twentieth century while acknowledging the deep controversy surrounding his racial views. The BBC noted that his work on DNA opened the door to understanding how DNA replicates and carries genetic information and set the stage for rapid advances in molecular biology.